<!doctype html>
<head>
  <meta charset=utf-8>
  <title>Baseline fullscreen</title>
  <link rel=match href=fullscreen-baseline-ref.html>
  <style>
    div { background: red; }
    #it { background: green; }
  </style>
</head>
<body>
  <div>-1</div>
  <div id="it">0</div>
  <div>1</div>
</body>
<script>
  document.getElementById("it").requestFullscreen();
</script>
